FutureZombie
Banned
I'm still partial to Rammy even post nerfs, but that's just me. He can initiate well with his rolly ball, can tank well with his shield up, can taunt to help take the aggro, and he can wreak some havoc when his ult is up since it's an AOE.
His downside is he sucks early game if you aren't in the jungle. He can't do that much damage until he gets his ult and he gets a ton of items to synergize with his passive. He's also much less OP against double AP comps because you have to build for MR/HP verses stacking Armor that helps his passive.
In terms of tanks I'd say...
Rammus > Amumu > Shen > Lenona
That being said Shen has the ability to do the most regular damage and run top lane. Something Rammy and Mumu can't really do.
Don't sleep on Galio. He can lane anywhere and his ult is devastating.